So, I was told to start a thread here to show y'all what I'm up to.

So here we go:
For the most part, I have finished rebuilding this 305 small block from a 79 Camaro. haven't wired it up yet or set up the distributor. Will through it on a hot stand to get it running first.




Have run into a few snags here or there. Latest though? Why doesn't my water pump pulley line up with any part of my crankshaft pulley and why don't any of the bolt holes on it line up either?

I was thinking about throwing it into my Jeep, but decided it was pointless right now. However, I did recently buy a 1976 Datsun 280z. But, it has a good running powertrain and puts about 200hp to the wheels. So swapping in the 305 has taking a back seat to all the body work and replacing the interior.

 

I've got about $1200-1300 worth of parts into this, not to mention a fair lot of labor. When I got this thing, it was in pretty rough condition. Was told it did run though.

Here's what I have done with the engine so far:
Cylinder heads rebuilt.
Block bored 0.030" over.
0.030" oversized piston rings
New oil pan
100% new seals all around
New harmonic balancer
New polished aluminum crankshaft pulley
New polished aluminum waterpump pulley
Newer Alternator
MSD Street Fire HEI Distributor, as well as upgrades to it to create a hotter spark above 5500rpm
Holley strip dominator intake manifold, will perform up to 7600rpm
Holley 600cfm carburetor, physically able to deliver enough fuel and air up to 8000rpm
Hooker Competition Headers, with the very high temp ceramic coating

 

What pistons did you use? Final compression. Stock bottom end 305?

 

Its a stock bottom end. It does have to pass emissions unfortunately due to my 280z being a 1976 and not a 75. 8.5:1 compression ratio. Dish top pistons.

I may pull it apart again and replace the crank and cam shaft if I change the application, but we'll see.

 

You know you can not just use +.030 rings without .030 pistons? A piston to cylinder wall clearance of .01 or more will cause piston slap. I think GM says .008 max. With used pistons and a +.030 bore you pushing .04 clearance.

Edit:
I saw in your other post the motor came that way. Are these the dished pistons? I do not think anyone that replaced the pistons in a 305 would put a factory like piston back in.

 

Whats the thinking with the 7-8000 rpm. The stock bottom end will not fly that high. Well it will fly but only once. I have HEARD of very few 8g 305's

This is a 302 which lends its self to high rpm better. 8000 RPM 302 Chevy Dyno Pull - YouTube

 

I listed the things I purchased for the engine. Since it was rebuilt once before, it had pistons that fit the bored cylinders. My Calipers don't lie to me. Also, afaik the 305s came with flat top pistons.

 

Are you sure that a 79 came with a flat top piston? I think they where 8.0-8.5 compression. In their stock form they had less then 150 HP until the mid 80's. I never said your calipers lied I just was wondering what .03 over pistons where put in. Most poeple do not put that much money in a 305 because you can buy a NEW 350 with twice the HP for $1200 with a 3 year/36,000 mile warranty.

Edit:
http://www.enginepartsstore.com/servlet/Detail?no=4088

 

Yeah, those are the pistons that are in it, or something like that. As I said, I didn't buy them.

Also, did ever think that the end of the exercise was never the point in the first place?

 

Since I have no idea what that means I am pretty sure I did not think it.

The way you worded the first post it looked like you had installed +.030 rings but did not replace the pistons. This is a easy fix right now. Once you started the motor it would have destroyed itself. Asking about the pistons was my way of trying to help you. Sorry if it went off track.